CONTINUOUS METHOD FOR REUSING COATING POWDER WASTE AND COATING POWDERS THUS OBTAINED

• Main Authors: BOLM, HELENE, BLATTER, KARSTEN, MONTGOMERY, DAVID
• Format: Patent
• Language: English; French
• Published: 14.05.1999
• Edition: 6
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; MAKING GRANULES OR PREFORMS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

A method for processing coating powder waste to obtain reusable coating powders by compacting the coating powder waste into a baked product without full melting. During the production of said coating powders, coating powder residues are continuously separated, continually compacted and the compacted product is continually ground together with fresh ground stock from the same coated powder charge without extrusion processing to form a coated powder.